Sap rising in a tree in spring is best explained by
A. cohesion of water molecules
B. increased transpiration
C. the pressure-flow hypothesis
D. chloroplast function
Ans: A. cohesion of water molecules
You might also like to view...
Which of the following is true regarding hagfish and lampreys?
A. They are characterized by a bony lower jaw. B. They are invertebrates. C. They are bony fish. D. They are vertebrates.
Which symptoms are characteristic of the inflammatory response?
a. pain only b. swelling only c. tenderness and swelling only d. pain and heat only e. pain, swelling, tenderness and heat
Which cells are produced during meiosis I?
a. spermatogonia b. primary spermatocytes c. secondary spermatocytes d. spermatids e. sperm
Which of the following groups feeds primarily on material filtered from the water?
a) sponges b) cephalopods c) nematodes d) gastropods e) annelids